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953192ba MD |
1 | #ifndef _FILTER_IR_H |
2 | #define _FILTER_IR_H | |
3 | ||
4 | /* | |
5 | * filter-ir.h | |
6 | * | |
7 | * LTTng filter ir | |
8 | * | |
ab5be9fa | 9 | * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
953192ba | 10 | * |
ab5be9fa | 11 | * SPDX-License-Identifier: LGPL-2.1-only |
953192ba | 12 | * |
953192ba MD |
13 | */ |
14 | ||
15 | #include "filter-ast.h" | |
16 | ||
17 | enum ir_op_signedness { | |
18 | IR_SIGN_UNKNOWN = 0, | |
19 | IR_SIGNED, | |
20 | IR_UNSIGNED, | |
21 | IR_SIGN_DYN, /* signedness determined dynamically */ | |
22 | }; | |
23 | ||
24 | enum ir_data_type { | |
25 | IR_DATA_UNKNOWN = 0, | |
26 | IR_DATA_STRING, | |
27 | IR_DATA_NUMERIC, /* numeric and boolean */ | |
e90d8561 | 28 | IR_DATA_FLOAT, |
953192ba | 29 | IR_DATA_FIELD_REF, |
586dc72f | 30 | IR_DATA_GET_CONTEXT_REF, |
bff988fa | 31 | IR_DATA_EXPRESSION, |
953192ba MD |
32 | }; |
33 | ||
20a01d15 SM |
34 | static inline |
35 | const char *ir_data_type_str(enum ir_data_type type) | |
36 | { | |
37 | switch (type) { | |
38 | case IR_DATA_UNKNOWN: | |
39 | return "IR_DATA_UNKNOWN"; | |
40 | case IR_DATA_STRING: | |
41 | return "IR_DATA_STRING"; | |
42 | case IR_DATA_NUMERIC: | |
43 | return "IR_DATA_NUMERIC"; | |
44 | case IR_DATA_FLOAT: | |
45 | return "IR_DATA_FLOAT"; | |
46 | case IR_DATA_FIELD_REF: | |
47 | return "IR_DATA_FIELD_REF"; | |
48 | case IR_DATA_GET_CONTEXT_REF: | |
49 | return "IR_DATA_GET_CONTEXT_REF"; | |
50 | case IR_DATA_EXPRESSION: | |
51 | return "IR_DATA_EXPRESSION"; | |
52 | default: | |
53 | abort(); | |
54 | } | |
55 | } | |
56 | ||
953192ba MD |
57 | enum ir_op_type { |
58 | IR_OP_UNKNOWN = 0, | |
59 | IR_OP_ROOT, | |
60 | IR_OP_LOAD, | |
61 | IR_OP_UNARY, | |
62 | IR_OP_BINARY, | |
63 | IR_OP_LOGICAL, | |
64 | }; | |
65 | ||
20a01d15 SM |
66 | static inline |
67 | const char *ir_op_type_str(enum ir_op_type type) | |
68 | { | |
69 | switch (type) { | |
70 | case IR_OP_UNKNOWN: | |
71 | return "IR_OP_UNKNOWN"; | |
72 | case IR_OP_ROOT: | |
73 | return "IR_OP_ROOT"; | |
74 | case IR_OP_LOAD: | |
75 | return "IR_OP_LOAD"; | |
76 | case IR_OP_UNARY: | |
77 | return "IR_OP_UNARY"; | |
78 | case IR_OP_BINARY: | |
79 | return "IR_OP_BINARY"; | |
80 | case IR_OP_LOGICAL: | |
81 | return "IR_OP_LOGICAL"; | |
82 | default: | |
83 | abort(); | |
84 | } | |
85 | } | |
86 | ||
953192ba MD |
87 | /* left or right child */ |
88 | enum ir_side { | |
89 | IR_SIDE_UNKNOWN = 0, | |
90 | IR_LEFT, | |
91 | IR_RIGHT, | |
92 | }; | |
93 | ||
9f449915 PP |
94 | enum ir_load_string_type { |
95 | /* Plain, no globbing at all: `hello world`. */ | |
96 | IR_LOAD_STRING_TYPE_PLAIN = 0, | |
97 | ||
98 | /* Star at the end only: `hello *`. */ | |
99 | IR_LOAD_STRING_TYPE_GLOB_STAR_END, | |
100 | ||
101 | /* At least one star, anywhere, but not at the end only: `he*wor*`. */ | |
102 | IR_LOAD_STRING_TYPE_GLOB_STAR, | |
103 | }; | |
104 | ||
953192ba MD |
105 | struct ir_op_root { |
106 | struct ir_op *child; | |
107 | }; | |
108 | ||
bff988fa MD |
109 | enum ir_load_expression_type { |
110 | IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT, | |
111 | IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT, | |
112 | IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT, | |
113 | IR_LOAD_EXPRESSION_GET_SYMBOL, | |
114 | IR_LOAD_EXPRESSION_GET_INDEX, | |
115 | IR_LOAD_EXPRESSION_LOAD_FIELD, | |
116 | }; | |
117 | ||
20a01d15 SM |
118 | static inline |
119 | const char *ir_load_expression_type_str(enum ir_load_expression_type type) | |
120 | { | |
121 | switch (type) { | |
122 | case IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT: | |
123 | return "IR_LOAD_EXPRESSION_GET_CONTEXT_ROOT"; | |
124 | case IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT: | |
125 | return "IR_LOAD_EXPRESSION_GET_APP_CONTEXT_ROOT"; | |
126 | case IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT: | |
127 | return "IR_LOAD_EXPRESSION_GET_PAYLOAD_ROOT"; | |
128 | case IR_LOAD_EXPRESSION_GET_SYMBOL: | |
129 | return "IR_LOAD_EXPRESSION_GET_SYMBOL"; | |
130 | case IR_LOAD_EXPRESSION_GET_INDEX: | |
131 | return "IR_LOAD_EXPRESSION_GET_INDEX"; | |
132 | case IR_LOAD_EXPRESSION_LOAD_FIELD: | |
133 | return "IR_LOAD_EXPRESSION_LOAD_FIELD"; | |
134 | default: | |
135 | abort(); | |
136 | } | |
137 | } | |
138 | ||
bff988fa MD |
139 | struct ir_load_expression_op { |
140 | struct ir_load_expression_op *next; | |
141 | enum ir_load_expression_type type; | |
142 | union { | |
143 | char *symbol; | |
144 | uint64_t index; | |
145 | } u; | |
146 | }; | |
147 | ||
148 | struct ir_load_expression { | |
149 | struct ir_load_expression_op *child; | |
150 | }; | |
151 | ||
953192ba MD |
152 | struct ir_op_load { |
153 | union { | |
9f449915 PP |
154 | struct { |
155 | enum ir_load_string_type type; | |
156 | char *value; | |
157 | } string; | |
953192ba | 158 | int64_t num; |
e90d8561 | 159 | double flt; |
953192ba | 160 | char *ref; |
bff988fa | 161 | struct ir_load_expression *expression; |
953192ba MD |
162 | } u; |
163 | }; | |
164 | ||
165 | struct ir_op_unary { | |
166 | enum unary_op_type type; | |
167 | struct ir_op *child; | |
168 | }; | |
169 | ||
170 | struct ir_op_binary { | |
171 | enum op_type type; | |
172 | struct ir_op *left; | |
173 | struct ir_op *right; | |
174 | }; | |
175 | ||
176 | struct ir_op_logical { | |
177 | enum op_type type; | |
178 | struct ir_op *left; | |
179 | struct ir_op *right; | |
180 | }; | |
181 | ||
182 | struct ir_op { | |
183 | /* common to all ops */ | |
184 | enum ir_op_type op; | |
185 | enum ir_data_type data_type; | |
186 | enum ir_op_signedness signedness; | |
187 | enum ir_side side; | |
188 | ||
189 | union { | |
190 | struct ir_op_root root; | |
191 | struct ir_op_load load; | |
192 | struct ir_op_unary unary; | |
193 | struct ir_op_binary binary; | |
194 | struct ir_op_logical logical; | |
195 | } u; | |
196 | }; | |
197 | ||
198 | #endif /* _FILTER_IR_H */ |